SB2021090937 - Fedora 35 update for salt
Published: September 9, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Exposure of Resource to Wrong Sphere (CVE-ID: CVE-2021-21996)
CWE-ID: -
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way Salt download URL. A local user with control over the file source URL and its source_hash URL can gain full file system access as root on a salt minion.
2) Improper Authentication (CVE-ID: CVE-2021-22004)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to the salt minion installer will accept and use a minion config file at C:\salt\conf if that file is in place before the installer is run. A local user with ability to create files in the said directory can subvert the proper behavior of the given minion software.
3) Command Injection (CVE-ID: CVE-2021-31607)
CWE-ID: CWE-77 - Command injection
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to command injection in the snapper module. A local user can escalate privileges on a minion.
Remediation
Install update from vendor's website.